Cass and assisted suicide
A common analysis seems to be that Cass would definitely be against assisted suicide because she'd consider it to be murder and that her total focus is on keeping people from dying. I have been thinking and I'm starting to disagree with that opinion. People request assisted suicide because they're in extreme pain and doctors only agree to it if there's no chance that they'll recover.
The opinion that Cass would be against it ignores that preventing death isn't Cass' only goal. Going back to Batgirl (2000) #23, written by Kelly Puckett, Cass handles hostage situations by making sure the scared hostages see her and know that help has arrived. She's horrified when she accidentally scares children. In Batgirl (2000) #16, when the young boy is depressed and admits to wondering if having a murderous father makes him a bad person, Cass is upset and desperate to calm the boy. She is projecting with her answer and trying to reassure herself that she's a good person but she also wants the boy to feel better. Batgirl (2000) #19 is Cass projecting her guilt and the circumstances of her murder onto the killer on Death Row but also important to her characterization is that she agrees to allow the execution and continuing to think of herself as a murderer because she wants the mother of the dead child to feel better. She considers the woman's happiness and wishes to be more important than hers.
I agree that Cass would hate assisted suicide but when confronted with a patient requesting it and how much pain life is for them, she'd probably agree to allow them to kill themselves even though it would feed her suicidal mentality.